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Demo · Claude

Add a talking head to a slide explainer, then make it a Short

A creator asks Claude to put himself into Tip 1 of his 24-minute slide explainer. cuttingfloor finds the tip by its words, cuts him out of his background into the corner the slides leave empty, then makes a vertical Short: slides on top, him underneath, captions on the seam.

01

Before

The clip as it came in · 2:11

memory-explainer.mp4 · 2:11

What it says

Most people give their assistant a notepad tool. The model stops mid-turn, emits a tool call, waits, then keeps going. We don’t give the assistant a tool. We give it a convention: it writes its notes inline, inside the response it’s already generating. The notes ride the response stream. No tool call, no round trip. A small state machine flips to recording on the open sentinel and done on the close. That’s working memory. Persistence happens later, at eviction. …three details that matter. Start there.

02

The edit

In Claude, with cuttingfloor connected

Most people give their assistant a notepad tool. The model stops mid-turn, emits a tool call, waits, then keeps going. We don’t give the assistant a tool. We give it a convention: it writes its notes inline, inside the response it’s already generating. The notes ride the response stream. No tool call, no round trip. A small state machine flips to recording on the open sentinel and done on the close. That’s working memory. Persistence happens later, at eviction. …three details that matter. Start there.

tip-1-short.mp4 · 2:11
Claudecuttingfloor

  1. Put me in my explainer for tip one: a talking head in the corner.

    I’ll cut Tip 1 out of the explainer by its words, line your clip up with the narration, cut you out of your background and put you in whichever corner the slides leave empty.

    • Used cuttingfloor › skills.search looked for a recipe
    • Used cuttingfloor › code.run found Tip 1’s words
    • Used cuttingfloor › media.analyze found the quiet gaps
    • Used cuttingfloor › code.run matched his sound to yours
    • Used cuttingfloor › create.cutout cut out his background
    • Used cuttingfloor › media.analyze Jev: which corner stays empty
    • Used cuttingfloor › edit.batch tried a rounded box, then the cut-out
    • Used cuttingfloor › render.frames compared the two
    • Used cuttingfloor › edit.batch slide in, fade out
    • Used cuttingfloor › audio.set_master YouTube-loud
    • Used cuttingfloor › export.video widescreen, 2:11
    • Used cuttingfloor › media.analyze Jev: checked he covers nothing

    You’re in the bottom-right corner for all of Tip 1, cut out of your background and in sync with your voice. That corner stays empty the whole tip, so you never had to move. Want a vertical version for Shorts?

  2. Now make a vertical one for Shorts: slides on top, me underneath, with captions.

    I’ll stack the slides on top and you underneath, framed on your face, with big word-by-word captions on the line between and a Tip 1 title at the start.

    • Used cuttingfloor › media.analyze found his face
    • Used cuttingfloor › timeline.create vertical
    • Used cuttingfloor › edit.batch slides on top, him below, title
    • Used cuttingfloor › code.run captions from the transcript
    • Used cuttingfloor › render.frames checked the seam
    • Used cuttingfloor › text.set captions onto the seam
    • Used cuttingfloor › clip.set_transform cropped the slide’s progress bar
    • Used cuttingfloor › qa.check length and volume
    • Used cuttingfloor › export.video vertical, 2:11

    Your Short is ready: slides on top, you underneath, big captions on the seam and a Tip 1 title for the first few seconds. At 2:11 it’s long for a Short. Want a 60-second cut next?

Shown in your agent: Claude, ChatGPT or Kazi. cuttingfloor does the editing and hands back the file; your agent shows it to you.

03

After

Ready to post · 2:11

tip-1-short.mp4 · 2:11

What the agent did

  1. Found where Tip 1 starts and ends in the 24-minute explainer from its words.
  2. Started on the first frame of the Tip 1 slide, not the end of the one before.
  3. Matched his clip’s sound to the explainer’s, so his lips land on the narration.
  4. Cut him out of his background: it looked cleaner on the dark slides than a rounded box.
  5. Had Jev check every second for an empty corner: the bottom right stays clear, so he stands there.
  6. Slid him in at the start and faded him out at the end.
  7. Kept the explainer’s sound and made it YouTube-loud.
  8. For Shorts: slides across the top, him framed on his face underneath.
  9. Big word-by-word captions on the seam, with a few misheard words fixed.
  10. A “TIP 1: WRITE NOTES INLINE” title for the first few seconds, exported vertical.

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